The speed limit of JACK3 engine is 1500 rpm after hot car, and it can be accelerated to 2500 rpm after a few minutes of flameout. What is this?

1. Engine fault signal is sent by ECU (engine computer), which controls all electronic equipment of the whole engine, so the specific solution should be combined with specific reasons. The best way is to stop the car immediately and hand it over to professional technicians for computer testing.

2. If it is a false fault code, just clear it directly. If it is a real fault, it needs to be checked and repaired according to the fault code. If only the engine fault light is on, the car is running normally and there is no obvious abnormality, you can continue driving and have time to go to a professional repair shop for further investigation.

3. The reasons for the failure light of automobile engine are: poor combustion state; Engine knock; Poor fuel quality; The engine cylinder is not clean, and there is carbon deposition. If these reasons are not solved in time, it will usually lead to a series of problems: the temperature of combustion chamber rises, the wear and tear intensifies, the fuel consumption of automobile increases, and even the engine may be damaged in the early stage. Finally, the quality of automobile exhaust becomes worse and the environment is polluted.